<template>
  <div class="app-container">
    <el-row :gutter="10">
      <el-col :span="24" :xs="24">
        <!-- 数据筛选表单 -->
        <el-form
          ref="queryForm"
          :model="queryParams"
          :inline="true"
          label-width="100px"
        >
          <!-- 数据筛选表单组件 -->
          <el-form-item label="管理员/超级管理员" prop="usertype">
            <el-input
              v-model="queryParams.usertype"
              placeholder="请输入管理员/超级管理员"
              clearable
              size="small"
              @keyup.enter.native="handleQuery"
            />
          </el-form-item>
          <el-form-item label="用户名称" prop="usernames">
            <el-input
              v-model="queryParams.usernames"
              placeholder="请输入用户名称"
              clearable
              size="small"
              @keyup.enter.native="handleQuery"
            />
          </el-form-item>
          <!-- <el-form-item label="默认为1，表示启用" prop="userflag">
            <el-input
              v-model="queryParams.userflag"
              placeholder="请输入默认为1，表示启用"
              clearable
              size="small"
              @keyup.enter.native="handleQuery"
            />
          </el-form-item> -->

          <!-- 数据筛选操作按钮 -->
          <el-form-item>
            <el-button
              type="primary"
              icon="el-icon-search"
              size="mini"
              @click="handleQuery"
            >搜索
            </el-button>
            <el-button
              icon="el-icon-refresh"
              size="mini"
              @click="resetQuery"
            >重置
            </el-button>
          </el-form-item>
        </el-form>
        <el-row :gutter="10" class="mb8">
          <el-col :span="3">
            <el-button
              type="primary"
              icon="el-icon-plus"
              size="small"
              @click="handleAdd"
            >新增user
            </el-button>
          </el-col>
        </el-row>

        <!-- 数据表格 -->
        <el-table v-loading="loading" :data="userList">
          <!-- 数据表格列 -->
          <el-table-column label="用户序列ID" align="center" prop="userid" />
          <el-table-column label="管理员/超级管理员" align="center" prop="usertype" />
          <el-table-column label="用户名称" align="center" prop="usernames" />
          <el-table-column label="默认为1，表示启用" align="center" prop="userflag" />
          <!-- 数据行操作按钮 -->
          <el-table-column
            label="操作"
            align="center"
            class-name="small-padding fixed-width"
          >
            <template slot-scope="scope">
              <el-button
                size="small"
                type="text"
                icon="el-icon-edit"
                @click="handleUpdate(scope.row)"
              >修改
              </el-button>
              <el-button
                size="small"
                type="text"
                icon="el-icon-delete"
                @click="handleDelete(scope.row)"
              >删除
              </el-button>
            </template>
          </el-table-column>
        </el-table>
        <!-- 数据分页加载 -->
        <el-pagination
          :current-page="pageNum"
          :page-sizes="[5, 10, 50, 100]"
          :page-size="pageSize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          @pagination="getList"
        />
      </el-col>
    </el-row>
    <!-- 添加修改user对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="120px">
        <!-- 数据编辑表单组件 -->
        <el-form-item label="管理员/超级管理员" prop="usertype">
          <el-input v-model="form.usertype" placeholder="请输入管理员/超级管理员" />
        </el-form-item>
        <el-form-item label="用户名称" prop="usernames">
          <el-input v-model="form.usernames" placeholder="请输入用户名称" />
        </el-form-item>
        <el-form-item label="默认为1，表示启用" prop="userflag">
          <el-input v-model="form.userflag" placeholder="请输入默认为1，表示启用" />
        </el-form-item>
      </el-form>
      <!-- 数据提交操作按钮 -->
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
/** 导入axios Api */
import { listUserByPage, getUser, addUser, updateUser, deleteUser } from '@/api/users'
export default {
  name: 'User',
  data() {
    return {
      // User类型
      typeOptions: undefined,
      // 遮罩层
      loading: false,
      // 总条数
      total: 0,
      // 当前页
      pageNum: 0,
      // 每页数据量
      pageSize: 0,
      // User表格数据
      userList: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 数据查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 5,
        userid: undefined,
        usertype: undefined,
        usernames: undefined,
        userflag: undefined
      },
      // 数据编辑表单
      form: {},
      // 表单数据校验规则
      rules: {
        userid: [
          { required: true, message: '用户序列ID不能为空', trigger: 'blur' }
        ],
        usertype: [
          { required: true, message: '管理员/超级管理员不能为空', trigger: 'blur' }
        ],
        usernames: [
          { required: true, message: '用户名称不能为空', trigger: 'blur' }
        ],
        userflag: [
          { required: true, message: '默认为1，表示启用不能为空', trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.getList()
  },
  methods: {
    /** 查询User数据列表 */
    getList() {
      this.loading = true
      listUserByPage(this.queryParams).then((response) => {
        this.userList = response.data.list
        this.total = response.data.total
        this.pageNum = response.data.pageNum
        this.pageSize = response.data.pageSize
        this.loading = false
      })
    },
    /** 处理分页 */
    handleSizeChange(val) {
      this.queryParams.pageSize = val
      this.getList()
    },
    handleCurrentChange(val) {
      this.queryParams.pageNum = val
      this.getList()
    },

    /** 数据编辑对话框取消按钮 */
    cancel() {
      this.open = false
      this.resetForm()
    },

    /** 数据编辑表单清空 */
    resetForm() {
      this.form = {
        userid: undefined,
        usertype: undefined,
        usernames: undefined,
        userflag: undefined
      }
    },

    /** 数据筛选参数重置按钮 */
    resetQueryParams() {
      this.queryParams.pageNum = 1
      this.queryParams.pageSize = 5
    },

    /** 数据筛选搜索按钮 */
    handleQuery() {
      this.resetQueryParams()
      this.getList()
      this.$message.success('查询成功')
    },

    /** 数据筛选重置按钮 */
    resetQuery() {
      this.queryParams = {
        pageNum: 1,
        pageSize: 5,
        userid: undefined,
        usertype: undefined,
        usernames: undefined,
        userflag: undefined
      }
      this.getList()
    },

    /** 新增按钮操作 */
    handleAdd() {
      this.resetForm()
      this.open = true
      this.title = '添加User'
    },

    /** 修改按钮操作 */
    handleUpdate(row) {
      this.resetForm()
      getUser(row.userid).then((response) => {
        this.form = response.data
        this.open = true
        this.title = '修改User'
      })
    },

    /** 数据提交按钮 */
    submitForm: function() {
      this.$refs['form'].validate((valid) => {
        if (valid) {
          if (this.title === '修改User') {
            updateUser(this.form).then((response) => {
              this.open = false
              this.title = ''
              this.getList()
              this.$message.success(response.data)
            })
          } else {
            addUser(this.form).then((response) => {
              this.open = false
              this.title = ''
              this.getList()
              this.$message.success(response.data)
            })
          }
        }
      })
    },

    /** 删除按钮操作 */
    handleDelete(row) {
      this.$confirm(
        '是否确认删除名称为"' + row.userName + '"的数据项?',
        '警告',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }
      )
        .then(function() {
          return deleteUser(row.userid)
        })
        .then(() => {
          this.getList()
          this.$message.success('删除成功')
        })
        .catch(() => {})
    }
  }
}
</script>
